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Watch Dogs mobile griefing app out today

Ubisoft's mobile companion app for Watch Dogs is now available on Android and iOS, and gives players the opportunity to interact with others in the game's online sections. Though the word "companion" doesn't have the same ring to it in the "ctOS Mobile" app, as players use it to mess with others' surroundings in an attempt to thwart their attempts to reach the finish line in both race and free ride modes.

For instance, players within the ctOS Mobile app can control a Chicago PD helicopter and go on the hunt for their rivals, controlling ctOS devices within the helicopter's range like road blockers and traffic lights to halt other players. Mobile players will also dispatch Chicago police units like squad cars and SWAT teams and upgrade their effectiveness. As app users complete challenges, they earn experience and skill points, with which they can enhance their police arsenal as well as their own abilities.

The app is free to download and doesn't require that players own the console game. Ubisoft has a list of its compatible devices on its blog. Our review of Watch Dogs, now available today, notes that the game is "a more fluid and modern power fantasy than we're used to," likening players in the game to being a wizard.